NominalToBinary (unsupervised)

Package

weka.filters.unsupervised.attribute

Synopsis

Converts all nominal attributes into binary numeric attributes. An attribute with k values is transformed into k binary attributes if the class is nominal (using the one-attribute-per-value approach). Binary attributes are left binary, if option '-A' is not given.If the class is numeric, you might want to use the supervised version of this filter.

Options

The table below describes the options available for NominalToBinary.

Option

Description

attributeIndices

Specify range of attributes to act on. This is a comma separated list of attribute indices, with "first" and "last" valid values. Specify an inclusive range with "-". E.g: "first-3,5,6-10,last".

binaryAttributesNominal

Whether resulting binary attributes will be nominal.

invertSelection

Set attribute selection mode. If false, only selected (numeric) attributes in the range will be discretized; if true, only non-selected attributes will be discretized.

transformAllValues

Whether all nominal values are turned into new attributes, not only if there are more than 2.